Roof ventilator



Feb. 2 1926,

' C. C. GRIDLEY ROOF 'VENTILATOR Filed Oct. 4. 1924 -o i 1!} 3'3 1 '6]20- v Gnu-m PATENT OFFICE.

CHARLES C. GRIDLEY, 0F COLUMBUS, OHIO.

ROOF VENTILATOR.

Application filed October 4, 1.924.

1 0 aZZ whom it may concern Be it known that I, CHARLES C. Gummy, acitizen of the United States, residing at Columbus, in the county ofFranklin and State of Ohio, have invented a new and useful RoofVentilator, of which the following is a specification.

This invention relates to a ventilator to be employed in roofs forventilating rooms thereunder.

The primary object of the invention is to provide a device of thischaracter which will be exceptionally simple in construction, efiicientin operation and one wherein rain or other foreign matter may beexcluded from the room ventilated by the device.

Another object of the invention is to provide a device of this characterwherein the ventilation may be regulated at the will of the operatoradapting the device for use under varying weather conditions.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawing:

Figure 1 is a longitudinal sectional view through a ventilatorconstructed in accordance with the invention.

Figure 2 is a bottom plan view thereof.

Referring to the drawing in detail, the reference character 5 indicatesthe ventilating pipe which establishes communication between a room orcompartment and the atmosphere.

Supported within the pipe 5 is a transversely disposed bar 6 providedwith a central bearing 7 in which the vertically movable rod 8 operates,the rod 8 also operating through bearing 9 formed in the bar 10 which issupported adjacent to the upper end of the pipe 5. As shown, this rod 8is formed with a head 11 at its upper end which is disposed in a planeabove the upper end of the pipe 5 where it supports the cap 12 which iscircular in formation and of a size to have its periphery dispos d beyond the pipe 5 in a manner as shown by F r 1 i the (lifet me T it ill eSerial No. 741,746.

seen that the cap 12 may be moved to a position to engage the upper endof the pipe 5 and to close the upper end thereof.

Mounted'adjacent to the upper end of the pipe 5 is a shield 13 which issubstantially an inverted frustum and is supported by means of thebraces or arms 17 that are shown as riveted to the member 13 at 18.

Positioned within the shield 13 and secured thereto by means of therivets 15 are baffles 14- which are also connected to the pipe 5, bymeans of the rivets 16. These bafiies are designed to create a draughtupwardly between pipe'5 and member 13.

Braces 17 have offset portions 18 which are secured to the pipe 5, thearms being secured to the shield 13 at 18. Each of these arms 17 isformed with a central offset portion 19 which is spaced from the upperend of the shield 13 where it has connection with the circular shield 20which is supported in spaced relation with the upper end of the shield13 by its connection with the arms.

The upper ends of the arms 17 extend inwardly and upwardly at 21 wherethey support the hood 22 which has its upper end open, the hood 22 beingof a diameter to permit it to be fitted within the member 20 in a mannerto provide a space therebetween to allow airto pass through theventilator.

In order that the cap 12 may be adjusted Vertically an operating member23 is provided, which operating member is formed with a curved end 2 1to which is connected a flexible member 25 that also connects with therod 8 at 26. The operating rod 23 is pivotally supported on the bar 6 at27 and is provided with an opening in its free end to accommodate thechain 28, the opposite end of the chain resting in such position that itmay be easily operated to move the cap 12 towards or away from the pipe5 to control the passage of air through the ventilator The chain 28 maybe supplied with a fusible link which would be destroyed in the eventthat the building in which the ventilator is positioned, should catch onfire to the end that the weight of he cap 12 will cause it to move toits closed position to shut off the draft through the ventilator.

From the foregoing it will bfi Obvious that due to this construction, aroom or compartt q pe wi nteater constructed in acc rdan e w th 1 1. 9iflvsntion, y be easily ventilated and the ventilator operated toexclude rainior other" foreign matter.

I claim A ventilator comprising the combination of a pipe section,shields arranged at the upper end of the pipe section and disposed inspaced relation with each other;transadapted to normally close the upperend of the pipesection, a pi-voted lever having a curved head arrangedadjacent to the rod, a'fiexible member connecting one end of the curved:head to=the rod and means operatively connected to the lever foradjusting the rod vertically.

In testimony that I claim the foregoing asn'ny'owng Ph a veheretoafiixed my signa- 20 ture.

CHARLES "C. GRIDLEY;

